Climatic data Sardinia, Cagliari: Average temperatures in CÂ°, location Cagliari: Januar - 9,9 CÂ° February - 10,2 CÂ° March - 11,6 CÂ° April - 13,8 CÂ° May - 17,3 CÂ° June - 21,3 CÂ° July - 24,2 CÂ° August - 24,3 CÂ° September - 21,8 CÂ° October - 18,2 CÂ° November - 13,6 CÂ° December - 16,4 CÂ° Annual average - 16,4 CÂ°.bsolute maximum temperatures in CÂ°, location Cagliari: Januar - 22,0 CÂ° February - 21,3 CÂ° March - 27,4 CÂ° April - 28,0 CÂ° May - 35,0 CÂ° June - 38,6 CÂ° July - 42,0 CÂ° August - 38,5 CÂ° September - 39,1 CÂ° October - 30,9 CÂ° November - 27,2 CÂ° December - 24,2 CÂ° Yearly maximum value - 42,0 CÂ°.
Though Darwin proposed natural selection as the primary evolutionary mechanism, he accepted other auxiliary mechanisms too. The most important of these was the transmission of acquired characteristics (those acquired by use-disuse) first proposed by Lamarck in the early 1800s..
Darwin's theory of evolution. Charles Darwin was an English naturalist who studied variation in plants and animals during a five-year voyage around the world in the 19th century. He explained his ideas on evolution in a book called, 'On the Origin of Species', published in 1859.